Improvement in slate-cleaners



UNITED STATES PATENT OFFICE.

FRANCIS HIOKMAN, OF READING, PENNSYLVANIA.

IMPROVEMENT IN sLA'rE-CLEANERS.

Specification forming part of Letters Patent No. 136,058, dated February 18, 1873.

cleaning `school-slates. The improved `-slatecleaner is composed of an elastic water holder .and ejector ot' rubberj and a dry-Wiper of sponge, felt, or equivalent substance, with or without an interposed stock of wood ormetal. vDescription of the `Drouot-ng.

Figure l represents a perspective View of one form of the improved slate-cleaner; Fig. 2, a longitudinal section ofthe same; Fig. an eleisation of-a second form of the-improved slate-cleaner; Fig. 4, a longitudinal section thereof.

General Description. In this slate-cleaner the means for containing and applying the water consists of an elastic holder, @,witha small orifice, 1. at one end,

and closed at its other endby a plug, b. The

latter may be of metal, as illustrated in Figs. 1 and 2, or of wood, and constitute a stock, more or less long; or it may be of rubberor `other substance, and constitute simply a bottom for the holder and a support for the wiper c, as illustrated in Figs. 3 and4. The parts may be united by means of any suitable cement;` or the water-holder may be attached by springing its neck 2 over an enlargement, 3,

Aof other suitable fibrous or cellular material secured in a cavity, 4, in the end of the plug or stock, as illustrated in Figs. 1 and 2; or a simple patch of felt or cloth, as illustrated in Figs. 3 and 4. In the latter forni it may constitute the base oi' the device, as illustrated.

In operation, the water-holder is filled by suction on being collapsed, and released with its orifice beneath water. The Water` is discharged, as required, by compressing the hold er, and the slate is rubbed-and dried.` by means of the Wiper. The plug or stock affords a irm hold for the fingers in handling the device, and in using the wiper.

Claims.

The following is claimed as new:

v l; An elastic Water-holder, a, constructed and operating as herein described, in combination Vwith a dry-Wiper, c, applied to the closed end thereof, for the purpose specified.

2. The improved slate-cleaner, composed ot' the water holder and ejector a, Wiper c, and interposed stockt', constructed and combined substantially as described, for the purpose set forth.

FRANCIS HIGKMAN.

vVitnesses:

J. @Ross MILLER, C. HoL'roN. 

